Static Electricity
Definition Force Frenzy
Going Against the Grain
Shocking Questions
Gravity & Such
Picture This!
100
Like electric charges do what?
They repel each other.
100
Define Force.
A push or a pull on an object.
100
Which magnetic poles attract and repel?
Opposite poles attract; same poles repel.
100
What is created when electricity flows through a wire wrapped around iron?
Electromagnet
100
What two factors affect gravitational force?
Mass and distance.
100
What will these magnets do?
Attract - due to the attractive force between the two magnets at the north and south poles that are near each other.
200
What is static electricity & what type of force creates this?
The buildup of electric charges on an object & friction.
200
Define Friction.
Force that slows or stops motion when objects rub together or move past one another.
200
Where are magnetic fields the strongest?
At the poles.
200
What is the difference between a conductor and an insulator?
Conductors allow the flow of electrons while insulators do not. 
200
Define induction in electricity.
Charging an object without direct contact.
200
In which example will the positively charged ball, placed in the middle of two objects, attract to object 1? Why?
A
B
C
D 
D Opposite charges attract. 
300
What happens to an atom if it gains or loses electrons?
Its charge changes (gains electrons = negative, loses electrons = positive).
300
Define Gravity.
Pulls objects to the center of the Earth.
300
Can a magnet have only one pole? Why or why not?
No. Magnets always have both a north and south pole.
300
Name two things we can do with an electromagnet that we cannot do with a permanent magnet.
Turn it on/off and change its strength.
300
What is the difference between gravitational force and electric/magnetic forces?
Gravity only attracts/ pulls, while electric and magnetic forces can attract (pull) or repel (push).
300
What will cause a magnetic field to be produced from this circuit?
A current flows through the wire.
400
What would happen if you placed two negatively charged balloons next to each other?
They would repel/push away from each other.
400
Define Magnetism.
Force between a magnet and a metal (can be a push or pull).
400
How can we make a magnetic field stronger without switching magnets?
Bring magnets closer together or stack them.
400
What are four ways to increase electromagnet strength?
Add more coils
Increase electric current/ higher battery Voltage
Amount of material in the core
Type of material in the core (iron, nickel, cobalt)
400
Why does electricity flowing through a wire make a compass change direction?
The electric current creates a magnetic field that affects the compass.
400
During this experiment, a positively charged rod is brought near, but not touching the electroscope. The positive leaves repel. What is this an example of?
Induction- the process of producing an electric current or charge in a material without touching it.
500
What is a static discharge and give one real life example of it in nature?
A sudden movement of electrons between objects caused by a difference in charge.
500
Define Electricity.
Electricity is a type of energy that happens when tiny particles called electrons move from one place to another.
500
How do magnetic fields behave similarly to electric fields?
Both create forces that act at a distance.
500
What happens if we switch the direction of electrons in an electromagnet?
The poles switch places.
500
What is the difference between a generator and an electric motor?
They are opposites of each other. A generator is a device that converts mechanical energy (motion) into electrical energy by induction. A motor is a device that uses electricity and magnetism to make things move.
500
This diagram shows two copper spheres. Sphere 1 is negatively charged, and Sphere 2 is neutral. What will be the result when these two spheres touch?
Both spheres will become negatively charged.